Give review requests a fake summary if they don't have one.
Give review requests a fake summary if they don't have one.

This should make them selectable in the admin view.

Fixes bug 984.

1tush/reviewboard,KnowNo/reviewboard,beol/reviewboard,bkochendorfer/reviewboard,davidt/reviewboard,atagar/ReviewBoard,KnowNo/reviewboard,custode/reviewboard,chazy/reviewboard,asutherland/opc-reviewboard,1tush/reviewboard,sgallagher/reviewboard,chazy/reviewboard,chazy/reviewboard,chazy/reviewboard,atagar/ReviewBoard,chipx86/reviewboard,KnowNo/reviewboard,KnowNo/reviewboard,reviewboard/reviewboard,brennie/reviewboard,1tush/reviewboard,chipx86/reviewboard,bkochendorfer/reviewboard,custode/reviewboard,Khan/reviewboard,beol/reviewboard,atagar/ReviewBoard,1tush/reviewboard,reviewboard/reviewboard,1tush/reviewboard,chazy/reviewboard,chipx86/reviewboard,atagar/ReviewBoard,custode/reviewboard,davidt/reviewboard,atagar/ReviewBoard,chazy/reviewboard,asutherland/opc-reviewboard,brennie/reviewboard,bkochendorfer/reviewboard,atagar/ReviewBoard,beol/reviewboard,Khan/reviewboard,1tush/reviewboard,brennie/reviewboard,chipx86/reviewboard,chazy/reviewboard,davidt/reviewboard,reviewboard/reviewboard,sgallagher/reviewboard,bkochendorfer/reviewboard,asutherland/opc-reviewboard,atagar/ReviewBoard,custode/reviewboard,beol/reviewboard,chazy/reviewboard,1tush/reviewboard,1tush/reviewboard,chazy/reviewboard,sgallagher/reviewboard,davidt/reviewboard,reviewboard/reviewboard,asutherland/opc-reviewboard,Khan/reviewboard,Khan/reviewboard,atagar/ReviewBoard,atagar/ReviewBoard,sgallagher/reviewboard,Khan/reviewboard,Khan/reviewboard,Khan/reviewboard,Khan/reviewboard,1tush/reviewboard,brennie/reviewboard,Khan/reviewboard